Pokin U178-920PZ drain plug closeup in black for precise seal and reliable fit.
Pokin U178-920PZ with O-ring included for leak prevention and quick install.
Pokin U178-920PZ compatible with MasterTemp heaters for versatile pool maintenance.
Pokin U178-920PZ compatible with Max-E-Therm heaters for flexible pool heating fixes.
Pokin U178-920PZ installation step visualization for fast DIY drain plug replacement.
Pokin U178-920PZ durable materials resist pool chemicals and temperature changes.
Pokin U178-920PZ manifold leak prevention during servicing and maintenance.

Pokin

Pokin U178-920PZ Drain Plug with O-Ring for Pentair MasterTemp & Max-E-Therm Heaters | 1/4-inch MPT

High-performance patio lawn and garden made for confident daily results

$15.32

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Why customers choose PatioZora Garden

Pokin U178-920PZ Drain Plug with O-Ring: a practical upgrade for Pentair pool heaters

Designed to meet original equipment specifications, this drain plug offers a reliable, snug seal for your heater manifold. The included O-ring helps maintain watertight performance during service and routine operation, with a focus on consistent drainage control.

Compatibility you can rely on

The U178-920PZ is designed to work with Pentair MasterTemp heaters (models 125, 200, 250, 300, 400) and Max-E-Therm heaters. It also covers related components in the 460736 series and SR lines such as SR200NA, SR333NA, SR400NA, and SR400HD.

  • MasterTemp: 125, 200, 250, 300, 400
  • Max-E-Therm: compatible units in the same family
  • Related models: 460736, SR200NA, SR333NA, SR400NA, SR400HD

Leak prevention and a reliable seal

Each drain plug includes a high-quality O-ring designed to stop drainage leaks from heater manifolds and pool pump systems. If you notice a leak near the drain plug area, replacement can help restore the seal and prevent further drips.

  • O-ring contributes to a watertight seal
  • Prevents leaks from heater manifolds during service
  • Helps maintain consistent water flow through the heater

Effortless installation

Replacing an old Pentair drain plug is a simple screw-in task that can be completed in minutes. Align, screw in, and tighten securely to stop leaks and restore normal drainage through the heater manifold during service.

  • Fast, screwdriver-less replacement
  • Minimal downtime while servicing the system
  • Designed to match OEM specifications for compatibility

Durable construction for pool environments

Made from premium materials, the U178-920PZ resists pool chemicals and fluctuating water temperatures. The result is a long-lasting solution that supports steady heater performance and reduced maintenance interruptions.

Customer support you can count on

Pokin offers responsive assistance if you have questions about sizing, installation, or compatibility. Our team aims to ensure a smooth replacement experience and ongoing support for your pool setup.

FAQ

Q: What pool heaters does the Pokin U178-920PZ drain plug fit?

A: Designed for Pentair MasterTemp and Max-E-Therm heaters, including models 125 to 400 and related SR/460736 units.

Q: Is an O-ring included with the drain plug?

A: Yes. The plug ships with a high-quality O-ring to help create a watertight seal.

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